JPH09212166A - Musical sound output device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To output a musical sound which is suitable for a solo performance and an ensemble performance. SOLUTION: When the solo performance is indicated by an automatic playing device 2, a control part 13 switches a changeover switch 12 to the side of a solo filter coefficient means 14 so that a solo filter coefficient is set to a filter 11. Further, when the ensemble performance is indicated, on the other hand, the control part 13 switches the changeover switch 12 to the side of an ensemble filter coefficient means 15 so that an ensemble filter coefficient is set to the filter 11. Consequently, a musical sound with an indicated timbre which is outputted from a waveform memory sound source 10 is altered by the filter 11 to output a musical sound which is suitable for the solo performance or ensemble performance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical tone output device capable of obtaining a good tone color when automatically playing a plurality of different tone colors or when playing different tone colors in a superimposed manner.

[0002]

2. Description of the Related Art Conventionally, when an automatic performance is performed by an automatic performance device, it is generally performed by using a plurality of different tone colors. Even in the case of live performances using electronic musical instruments, different tones such as electronic drums, electric guitars, and keyboards are overlaid and played.

[0003]

However, when different tones are used, the tones of the respective tones sound good when heard alone, but when mixed with other tones or ensemble. However, there is a problem that the tone color may not be noticeable or the tone color of the entire musical tone may be deteriorated. Therefore, it is an object of the present invention to provide a musical tone output device which, when used simultaneously with other timbres, produces a good timbre and also outputs a musical tone of a good timbre even when being listened alone.

[0004]

In order to achieve the above object, the tone output apparatus of the present invention uses a specific parameter of a tone signal generated and output when a solo performance is instructed and when an ensemble performance is performed. When is instructed, the switch is made between. Further, in this musical sound output device, at least the filter coefficient set in the tone color filter is included in the parameters.

Further, the musical sound output apparatus of the present invention has a solo dedicated area in which solo dedicated parameters are stored, an ensemble dedicated area in which ensemble dedicated parameters are stored, and a common area in which common parameters for solo and ensemble are stored. When a solo performance is instructed, parameters are read from the solo exclusive area and common area of the memory and set in the tone generator section, and when ensemble performance is instructed, it is shared with the ensemble exclusive area of the memory. Parameters are read from the area and set in the sound source section.

Furthermore, in the tone output device of the present invention, when automatic performance data including solo performance data and ensemble performance data is supplied, the solo parameter in the solo performance data portion changes according to the progress of the music. In the ensemble performance data section, parameters for the ensemble are automatically set and set in the tone generator section.

According to the present invention as described above, when a solo performance is instructed, it is possible to switch to a parameter suitable for the solo performance and output a good musical sound. Further, when the ensemble performance is instructed, the parameters suitable for the ensemble performance can be switched to output a good musical sound of the ensemble. Therefore,
In an automatic performance using a plurality of different tones, it is possible to perform a good tone color automatic performance. Further, it is possible to output a good musical sound even in a live performance or the like in which different tones are overlapped and used.

Since the ensemble parameter is a parameter obtained by changing a part of the solo parameter, the memory only needs to have a storage area for commonly usable parameters and a storage area for each dedicated parameter.
Therefore, the memory capacity can be reduced and the memory can be effectively used, as compared with the case where each parameter is stored independently. Furthermore, when automatic performance data including solo data and ensemble data is supplied, the parameters can be switched according to the solo performance part and the ensemble performance data part, so in any performance part as the song progresses. Can perform well.

[0009]

FIG. 1 shows the configuration of a first embodiment of the musical sound output device of the present invention. In this example, the musical sound output device of the present invention is applied to automatic performance. In FIG. 1, 1-1 is a first series tone generator section that generates a first tone color tone, 1-2 is a second series tone source section that generates a second tone color tone, and 1-n is It is a tone generator section of the n-th series that generates a tone of the n-th tone color. That is, the sound source section 1-1
By 1 to 1-n, musical tones of n kinds of tones can be generated. Further, 2 is an automatic performance device for automatically supplying automatic performance data to a plurality of tone generators 1-1 to 1-n at the same time. Further, 3 is a sound system for emitting the musical tones output from the tone generators 1-1 to 1-n.

The tone generators 1-1 to 1-n all have the same configuration, and the configuration is shown in the tone generator 1-1 of the first series. Therefore, the configuration of the sound source unit will be described by taking the first-sequence sound source unit 1-1 as an example. The sound source section 1-1 of the first series is
The waveform memory tone generator 10, the filter 11 to which the musical tone generated in accordance with the automatic performance data from the waveform memory tone generator 10 is supplied, the solo filter coefficient means 14 for supplying the filter 11 with the solo filter coefficient, and the filter 11. The ensemble filter coefficient means 15 for supplying the ensemble filter coefficient, the changeover switch 12 for selecting one of the solo filter coefficient means 14 and the ensemble filter coefficient means 15, and the changeover switch 12 according to the automatic performance data. And a control unit 13 for controlling.

The sound source units 1-1 to 1-1 configured as described above
The operation of 1-n will be described by taking the sound source section 1-1 of the first series as an example. The automatic performance device 2 supplies performance data as shown in FIG. 2 to the tone generators 1-1 to 1-n. However, FIG. 2 shows a single tone color track, and the performance data from the automatic performance device 1 actually has a plurality of tracks. In the track shown in FIG. 2, "PC" is a program change message for changing the tone color, and "Solo"
Is a message instructing solo performance, "D" is a message indicating duration, and "Ensemble" is a message instructing ensemble performance.

That is, the program change message is used to change the tone color to be played solo and then the solo performance is designated, or the program change message is changed to the tone color to be played ensemble and then the ensemble performance is designated. At this time, when the program change message is supplied from the automatic performance device 1 to the tone generator section 1-1 of the first series, a tone color tone corresponding to the program change message is generated from the waveform memory tone generator 10 in the tone generator section 1-1. Is supplied to the filter 11. Next, when a solo performance is instructed, the control unit 13 switches the changeover switch 12 to the solo filter coefficient means 14 side by this instruction. As a result, the filter coefficient from the solo filter coefficient means 14 is set in the filter 11, and the musical tone of the solo performance having a good tone color can be obtained.

When the program change message is followed by a message instructing the ensemble performance to the tone generator section 1-1 of the first series, the control section 13 switches the changeover switch 12 to the ensemble filter coefficient means 15 side. As a result, the filter coefficient from the ensemble filter coefficient means 15 is set in the filter 11,
It is possible to obtain a musical tone of an ensemble performance having a good tone color. Note that the ensemble filter coefficient is, for example, a filter coefficient that lowers the level of the frequency component in which the levels are overlapped and concentrated when the sound color from the sound source units 1-2 to 1-n of another series overlaps. Then, a good tone can be obtained when the ensemble performance is performed. The solo filter coefficient is a filter coefficient that produces a good timbre when listened alone.

As described above, the first tone output device of the present invention is as follows.
In the embodiment of the present invention, when the solo performance is instructed, the filter coefficient suitable for the solo performance is set in the filter,
When the ensemble performance is instructed, the filter coefficient suitable for the ensemble performance is set in the filter. As a result, it is possible to obtain a musical tone of good tone color regardless of whether it is a solo performance or an ensemble performance.

Next, a second embodiment of the musical sound output device of the present invention will be described with reference to FIGS. FIG. 3 is a block diagram showing the configuration of the second embodiment in which the musical sound output device is applied to the automatic performance, and FIG. 4 shows the configuration of the frequency analysis unit in the second embodiment. 5, the memory configuration of the random access memory (RAM) in the second embodiment is shown. In FIG. 3, 30-1 is a first series tone generator section that generates a first tone color tone, 30-2 is a second series tone source section that generates a second tone color tone, and 30-n is It is a tone generator section of the n-th series that generates a tone of the n-th tone color. That is, the tone generators 30-1 to 30-n can generate tones of n kinds of tones.

Further, 31 receives the automatic performance data output from the automatic performance device 32, and transfers the performance data for each performance track to the first series tone generator section 30-1 to the nth series tone generator section 30-n. The controller 32 controls the level and frequency of specific overtones, and the controller 32 supplies the controller 31 with automatic performance data including a plurality of performance tracks corresponding to a plurality of parts as shown in FIG. It is an automatic performance device that allows automatic performance. Further, 33 is a random access memory (RAM) for storing tone color parameters and the like during the ensemble performance set by the control unit 31 controlling the tone generator units 30-1 to 30-n, and 34 is the tone generator unit 30-. 1 to 30-n is a mixer for mixing the musical tones output from the mixer, 35 is a frequency analysis unit that performs frequency analysis of the musical tones output from the mixer 34, and supplies the result to the control unit 31, and 36 is from the mixer 34. It is a sound system for emitting the output musical sound.

The operation of the musical sound output apparatus of the second embodiment of the present invention thus constructed will be described. The automatic performance data output from the automatic performance apparatus 32 is of the first series via the control unit 31. The sound source units 30-1 to 30-n of the n-th series are supplied to the sound source units 30-1 to 30 of the respective series.
-N generates a musical tone, and each musical tone is generated by the mixer 34.
Is supplied to and mixed with. The mixed musical sound is supplied to the frequency analysis unit 35, and the level of each spectrum is detected. The level information for each detected spectrum is supplied to the control unit 31. The control unit 31 performs the following processing assuming that the cause of the deterioration of the musical sound during the ensemble performance is that the level is concentrated in a certain frequency band.

First, when the control section 31 detects a frequency band having a high level, the control section 31 compares the frequency band with the key code currently being sounded, and calculates the harmonic overtone of the frequency corresponding to the key code. . Then, in order to lower the level of the frequency band, an instruction such as lowering the level of the calculated overtone or shifting the frequency of the overtone is issued, and the first sound source unit 30-1 to the nth sound source unit 30 are instructed. −
Instruct each series of n. This instruction is for the sound source unit 3 of the first series
This is sequentially performed for each sequence of the 0-1 to n-th sequence sound source units 30-n. That is, the first-series sound source unit 30-1 to the n-th sound source unit 30 that have received this instruction.
One of -n lowers the level of the indicated overtone,
Alternatively, the frequency of the overtone is shifted. Then, after performing such processing, the mixer 34 at this time
The frequency analysis of the musical sound output by the frequency analysis unit 35
Will be done again in.

The control unit 31 receives the frequency analysis result at this time, detects whether or not the level of the high frequency band is improved, and if it is not improved, gives the same instruction to the next series. To In this way, when the high level frequency band is improved, the control unit 31 stops the control. Then, the tone color parameter obtained by this control is used as the tone color parameter during the ensemble performance,
It is registered by storing it in the RAM 33. As a result, when the ensemble performance is instructed next time, R
By reading out the tone color parameters for the ensemble from the AM 33, it is possible to reproduce a good tone color ensemble performance. Further, when the level of the specific frequency is high, it is possible to reproduce a musical tone having a good tone color by reading the corresponding tone color parameter from the RAM 33.

The processing of the control section 31 described above is performed when the ensemble performance is instructed from the automatic performance device 32, and is not performed when the solo performance is instructed. By the way, an example of the configuration of the frequency analysis unit 35 is shown in FIG.
In this example, the frequency analysis unit 35 is composed of a filter bank as described below. In FIG. 4, low-pass filter (LPF) 40-1, band-pass filters (BPF) 40-2, 40-3, ..., High-pass filter (HPF) 40-k perform frequency analysis of the input signal. Are connected in parallel with each other, and the levels of the frequency components that have passed through the respective filters 40-1 to 40-k are detected by the level detectors 41-1 to 41-k that are subsequently connected to the respective filters.

As a result, the level of each frequency component (spectrum) is detected, and the detected level information is supplied to the control unit 31. Frequency analysis unit 35
Can be configured by a filter bank as described above, but can also be performed by FFT (Fast Fourier Transform). However, at present, since the FFT speed is slow, frequency analysis by a filter bank is more practical.

The memory configuration of the RAM 33 is shown in FIG. 5. A memory area is assigned for each tone color, and the memory area for each tone color includes a solo tone color parameter storage area for storing solo tone color parameters and an ensemble. An ensemble tone color parameter area in which dedicated tone color parameters are stored. In this case, the solo tone color parameter storage area includes a common portion including tone color parameters commonly used by the solo and the ensemble, and a solo dedicated portion including solo-specific tone color parameters.

This is because the ensemble tone color parameter processed by the control unit 31 is a modification of a part of the solo tone color parameter, and both tone color parameters have commonly usable parameters. Because. If the parameter area of the common part is formed, R will be compared with the case where the ensemble tone color parameter and the solo tone color parameter are stored independently.
The storage capacity of the AM 33 can be reduced. RAM3
Reference numeral 3 designates a memory area for storing parameters for the first to m-th timbres, which are composed of solo timbre parameters including the common part and solo dedicated part shown in FIG. 5 and ensemble timbre parameters. Are formed.

When a solo performance is instructed in the RAM 33, the tone color parameters are read out from the common portion of the solo tone color parameter area of the RAM 33 and the dedicated solo portion, and a tone color suitable for the solo is produced. Is generated.
In addition, when ensemble performance is instructed, RAM
The tone color parameters suitable for the ensemble are read out from the common part of the 33 tone color parameter regions and the ensemble tone color region, and a good musical tone of the ensemble performance is generated.

When the control section 31 controls the timbre parameters, the timbre output from one of the first series tone generator section 30-1 to the nth series tone generator section 30-n and other timbres. The tone color parameters may be controlled while checking the compatibility with different tone colors output from one. Further, the tone colors output from the first-series tone generator 30-1 to the n-th tone generator 30-n may be prioritized to control the tone color parameters in ascending order of priority. Furthermore, regarding the characteristic frequency component of each timbre, the degree of reduction may be determined in consideration of eliminating the characteristic frequency component when reducing the timbre. Furthermore, the musical sound output device shown in FIG. 3 can be applied as a sound producing device for each tone color for performing an ensemble performance.

[0026]

Since the present invention is configured as described above, when a solo performance is instructed, it is possible to switch to parameters suitable for the solo performance and output a good musical sound. Further, when the ensemble performance is instructed, the parameters suitable for the ensemble performance can be switched to output a good musical sound of the ensemble. Therefore, in an automatic performance using a plurality of different timbres, it is possible to perform a good timbre automatic performance.
Further, it is possible to output a good musical sound even in a live performance or the like in which different tones are overlapped and used.

Further, since the ensemble parameter is a parameter obtained by changing a part of the solo parameter, it is sufficient that the memory has a storage area for commonly used parameters and a storage area for each dedicated parameter.
Therefore, the memory capacity can be reduced and the memory can be effectively used, as compared with the case where each parameter is stored independently. Furthermore, when automatic performance data including solo data and ensemble data is supplied, the parameters can be switched according to the solo performance part and the ensemble performance data part, so in any performance part as the song progresses. Can perform well.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a first embodiment of a musical sound output device of the present invention.

FIG. 2 is a diagram showing an example of performance data in a track of one tone color of automatic performance data output from the automatic performance device.

FIG. 3 is a block diagram showing the configuration of a second embodiment of the musical sound output device of the present invention.

FIG. 4 is a diagram showing a configuration of a frequency analysis unit in a second embodiment of the musical sound output device of the invention.

FIG. 5 is a diagram showing a configuration of a RAM in the second embodiment of the musical sound output device of the invention.

[Explanation of symbols]

1-1 to 1-n first to n-th sound source units, 2
Automatic performance device, 3 sound system, 10 waveform memory sound source, 11 filter, 12 changeover switch, 13
Control section, 14 solo filter coefficient means, 15 ensemble filter coefficient means, 30-1 to 30-n first series to n-th series sound source section, 31 control section, 32
Automatic performance device, 33 RAM, 34 mixer, 35 frequency analysis unit, 36 sound system, 40-1 to 40
-K filter, 41-1 to 41-k level detector

Claims (4)

[Claims] 1. A tone output device, wherein specific parameters of a tone signal generated and output are switched between when a solo performance is instructed and when an ensemble performance is instructed. 2. The musical sound output device according to claim 1, wherein the parameters include at least a filter coefficient set in the timbre filter. 3. A solo performance, comprising: a memory having a solo dedicated area in which solo dedicated parameters are stored, an ensemble dedicated area in which ensemble dedicated parameters are stored, and a common area in which common parameters for solo and ensemble are stored. Is specified, the parameters are read from the solo exclusive area and the common area of the memory and set in the tone generator section.When the ensemble performance is instructed, the parameters are read from the ensemble exclusive area of the memory and the common area. A musical sound output device characterized in that it is set in a section. 4. When the automatic performance data including the solo performance data and the ensemble performance data is supplied, the solo performance data portion has a solo parameter and the ensemble performance data portion has an ensemble parameter according to the progress of the music. Tones are automatically switched to the sound source section and set.